U+1D721 "𝜡" Mathematical Bold Italic Capital Zeta Unicode Character

U+1D721 "𝜡" Mathematical Bold Italic Capital Zeta is part of the Mathematical Alphanumeric Symbols block, designed to represent the Greek letter Zeta in a bold and italic typeface for use in mathematical and scientific notation. It belongs to a larger set of stylized letters that allow authors to convey specific semantic meanings, such as distinguishing variables, constants, or special functions in equations. This character is typically rendered in a specialized font that combines a heavy stroke weight with a slanted italic angle, and it is encoded in Unicode to ensure consistent digital representation across different platforms and software, aiding in precise communication of complex formulas.

General Properties

Code Point	U+1D721
Version Added	3.1
Name	Mathematical Bold Italic Capital Zeta
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"Ζ" U+0396 Greek Capital Letter Zeta

Encodings

HTML Decimal Encoding	𝜡
HTML Hex Encoding	𝜡
UTF-8 Encoding	0xF0 0x9D 0x9C 0xA1
UTF-16 Encoding	0xD835 0xDF21
UTF-32 Encoding	0x0001D721
C/C++/Java Escape	\ud835\udf21

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Uppercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"ζ" U+03B6 Greek Small Letter Zeta
NFKC Simple Casefold	"ζ" U+03B6 Greek Small Letter Zeta
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Math	Yes
Other Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Upper